Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,234 questions · 3,357 findings · 396 reviews

No studies found 803 · 23.9%GRADE not reported 270 · 8%Very low 757 · 22.5%Low 859 · 25.6%Moderate 486 · 14.5%High 182 · 5.4%

Cervical pull headgear vs Minor interceptive procedures (control)

Amount of crowding (lower incisor crowding) at 10 weeks · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

It is very uncertain whether cervical pull headgear changes amount of crowding (lower incisor crowding) at 2 years compared with minor interceptive procedures (control) (very low certainty).

1 finding from 1 review

Cervical pull headgear vs Minor interceptive procedures (control)

Size of the jaws (maxillary and mandibular arch length) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Cervical pull headgear led to higher size of the jaws (maxillary and mandibular arch length) compared with minor interceptive procedures (control); GRADE not reported.

1 finding from 1 review

Cervical pull headgear vs Minor interceptive procedures (control)

Position of the incisors (upper incisor inclination) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Cervical pull headgear led to higher upper incisors to maxilla at 2 years compared with minor interceptive procedures (control); GRADE not reported.

1 finding from 1 review

Summary of Findings Table ‐ Electrocoagulation alone vs control (vehicle solution of allopurinol by mouth)

All‐cause mortality at last · people with liver metastases

It is very uncertain whether summary of Findings Table ‐ Electrocoagulation alone changes all‐cause mortality at last compared with control (vehicle solution of allopurinol by mouth) (very low certainty).

1 finding from 1 review

Summary of Findings Table ‐ Electrocoagulation alone vs control (vehicle solution of allopurinol by mouth)

Post‐operative deaths · people with liver metastases

It is very uncertain whether summary of Findings Table ‐ Electrocoagulation alone changes post‐operative deaths compared with control (vehicle solution of allopurinol by mouth) (very low certainty).

1 finding from 1 review

Vitamin C vs allopurinol

Joint pain reduction ‐ not reported · participants with chronic gout and sUA level > 0.36mmol/L

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C vs allopurinol

Participant global assessment · participants with chronic gout and sUA level > 0.36mmol/L

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C vs allopurinol

Tophus regression · participants with chronic gout and sUA level > 0.36mmol/L

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C vs allopurinol

Acute gout attacks · participants with chronic gout and sUA level > 0.36mmol/L

The review found no eligible studies for this question.

1 finding from 1 review